Defines methodology for testing bar code symbols for conformity with symbology specification, specifies a range of quality grades based on measuring specified attributes of the symbol and provides information on possible causes of deviation from optimum grades to enable users to take appropriate corrective action.

NF EN 1635:1999 - Identical

BS EN 1635:1998 - Identical

DIN EN 1635 (1998-02) - Identical

ONORM EN 1635:1997 - Identical

NBN EN 1635:1997 - Identical

I.S. EN 1635:1998 - Identical

NS EN 1635:1997 - Identical

SS EN 1635 Ed. 1 (1997) - Identical

UNE EN 1635:1998 - Identical